Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 125	$ (158)	$ (1,003)	$ 882
Income tax expense (benefit) specific to the period			$ (1,100)	$ (300)